Question

Daca impart suma a doua numere la diferenta lor,voi obtine 5si restul 4.Daca adunam suma si diferenta ,rezulta 94.Care sunt cele doua numere?

Answer 1

(a+b)(a-b)=5 r 4⇒⇒a+b=5a-5b+4
a+b+a-b=94
2a=94
a=47
a+b=5a-5b+4
47+b=5*47-5b+4
6b=235-47+4
6b=192
b=32